Machine & Technics - Sewing wool fabrics with thick linen threads

[Ferreol]

Hi everyone,

I'm starting to think about a project that consists of sewing wool fabric (approx. 400gsm) with thick linen thread (diameter: 3mm).

The aim is to use linen for decorative purposes but also to avoid synthetics.

Given the thick diameter of the thread, I'm considering using an industrial leather machine.

I have read quite a lot of advice by @Wizcrafts, particuarly on the following post:

I would love your opinion on what you would recommend:

• Is an industrial machine (like the Singer 45K) recommended, or is it "too much"? My main challenge is finding a machine able to "accept" a 3mm or 4mm diameter thread, so I don't know if I should consider only heavy-duty leather machinery or if other options are possible.
• If the 45K or equivalent is too much, what "more gentle" option would you recommend?
• Would you recommend waxing the thread, specifically for sewing wool fabric?

Many thanks for your advice,

Clément